71448012 has 18 divisors (see below), whose sum is σ = 180604788. Its totient is φ = 23815992.

The previous prime is 71448001. The next prime is 71448017. The reversal of 71448012 is 21084417.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (71448017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 992298 + ... + 992369.

Almost surely, 2^71448012 is an apocalyptic number.

It is an amenable number.

71448012 is an abundant number, since it is smaller than the sum of its proper divisors (109156776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71448012 is a wasteful number, since it uses less digits than its factorization.

71448012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984677 (or 1984672 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 71448012 is about 8452.6925887554. The cubic root of 71448012 is about 414.9509053066.

The spelling of 71448012 in words is "seventy-one million, four hundred forty-eight thousand, twelve".